Java Tutorial/Spring/Query Parameters

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Control Parameter Type In JdbcTemplate Query

File: context.xml



   <source lang="java">

<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans"

      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xmlns:util="http://www.springframework.org/schema/util"
      xmlns:tx="http://www.springframework.org/schema/tx"
      xmlns:aop="http://www.springframework.org/schema/aop"
      xmlns:lang="http://www.springframework.org/schema/lang"
      xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
                          http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-2.0.xsd
                          http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd
                          http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
                          http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang-2.0.xsd">
   <bean id="dataSource" class="org.apache.rumons.dbcp.BasicDataSource" destroy-method="close">
   <property name="driverClassName" value="org.hsqldb.jdbcDriver"/>
   <property name="url" value="jdbc:hsqldb:mem:."/>
   <property name="username" value="sa"/>
   <property name="password" value=""/>
   </bean>
   <bean id="lobHandler" class="org.springframework.jdbc.support.lob.OracleLobHandler">
       <property name="nativeJdbcExtractor" ref="nativeJdbcExtractor"/>
   </bean>
   <bean id="nativeJdbcExtractor" class="org.springframework.jdbc.support.nativejdbc.rumonsDbcpNativeJdbcExtractor"/>
   <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
       <property name="dataSource" ref="dataSource"/>
   </bean>

</beans></source>





Deal With TimeStamp

File: context.xml



   <source lang="java">

<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans"

      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xmlns:util="http://www.springframework.org/schema/util"
      xmlns:tx="http://www.springframework.org/schema/tx"
      xmlns:aop="http://www.springframework.org/schema/aop"
      xmlns:lang="http://www.springframework.org/schema/lang"
      xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
                          http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-2.0.xsd
                          http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd
                          http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
                          http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang-2.0.xsd">
   <bean id="dataSource" class="org.apache.rumons.dbcp.BasicDataSource" destroy-method="close">
   <property name="driverClassName" value="org.hsqldb.jdbcDriver"/>
   <property name="url" value="jdbc:hsqldb:mem:."/>
   <property name="username" value="sa"/>
   <property name="password" value=""/>
   </bean>
   <bean id="lobHandler" class="org.springframework.jdbc.support.lob.OracleLobHandler">
       <property name="nativeJdbcExtractor" ref="nativeJdbcExtractor"/>
   </bean>
   <bean id="nativeJdbcExtractor" class="org.springframework.jdbc.support.nativejdbc.rumonsDbcpNativeJdbcExtractor"/>
   <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
       <property name="dataSource" ref="dataSource"/>
   </bean>

</beans></source>





Object array as parameter

File: Main.java



   <source lang="java">

import java.util.List; import org.springframework.jdbc.core.JdbcTemplate; import org.springframework.jdbc.datasource.SingleConnectionDataSource; public class Main {

 public static void main(String args[]) throws Exception {
   SingleConnectionDataSource ds = new SingleConnectionDataSource();
   ds.setDriverClassName("org.hsqldb.jdbcDriver");
   ds.setUrl("jdbc:hsqldb:data/tutorial");
   ds.setUsername("sa");
   ds.setPassword("");
   //
   // ds.setDriverClassName("com.mysql.jdbc.Driver");
   // ds.setUrl("jdbc:mysql://localhost:3306/spring");
   // ds.setUsername("spring");
   // ds.setPassword("password");
   //
   // ds.setDriverClassName("oracle.jdbc.driver.OracleDriver");
   // ds.setUrl("jdbc:oracle:thin:@spring:1521:my10g");
   // ds.setUsername("spring");
   // ds.setPassword("password");
   
   JdbcTemplate jt = new JdbcTemplate(ds);
   jt.execute("create table employee (id int, name varchar)");
   jt.execute("insert into employee (id, name) values (1, "A")");
   jt.execute("insert into employee (id, name) values (2, "B")");
   jt.execute("insert into employee (id, name) values (3, "C")");
   jt.execute("insert into employee (id, name) values (4, "D")");
   jt.execute("insert into employee (id, name) values (5, "E")");
   jt.execute("insert into employee (id, name) values (6, "F")");    
   
   
   Object[] parameters = new Object[] {new Integer(1)};
   List l = jt.queryForList("select id, name from employee where id > ?",
       parameters);
   System.out.println(l.size());
   System.out.println(l.get(0));
   System.out.println(l.get(0).getClass());
   
   ds.destroy();
 }

}</source>





StoredProcedure with parameters

File: EmployeeDaoImpl.java



   <source lang="java">

import java.sql.Types; import java.util.ArrayList; import java.util.Collections; import java.util.HashMap; import java.util.List; import java.util.Map; import javax.sql.DataSource; import org.springframework.jdbc.core.SqlOutParameter; import org.springframework.jdbc.core.SqlParameter; import org.springframework.jdbc.core.support.JdbcDaoSupport; import org.springframework.jdbc.object.StoredProcedure; import org.springframework.jdbc.support.nativejdbc.SimpleNativeJdbcExtractor; public class EmployeeDaoImpl extends JdbcDaoSupport {

 protected void initDao() throws Exception {
   super.initDao();
   getJdbcTemplate().setNativeJdbcExtractor(new SimpleNativeJdbcExtractor());
   CallAggregateEmployees procedure = new CallAggregateEmployees(getDataSource());
   
   int numberOfAffectedRecords = procedure.aggregate(1, 2);
 }

} class CallAggregateEmployees extends StoredProcedure {

 private static final String STORED_PROCEDURE_NAME = "aggregate_employees";
 public CallAggregateEmployees(DataSource dataSource) {
   super(dataSource, STORED_PROCEDURE_NAME);
   declareParameter(new SqlParameter("start_age", Types.INTEGER));
   declareParameter(new SqlParameter("end_age", Types.INTEGER));
   declareParameter(new SqlOutParameter("number_aggregated", Types.INTEGER));
   compile();
 }
 public int aggregate(Integer start, Integer end) {
   Map<String, Integer> inParameters = new HashMap<String, Integer>(2);
   inParameters.put("start_age", start);
   inParameters.put("end_age", end);
   Map outParameters = execute(inParameters);
   if (outParameters.size() > 0) {
     return (Integer) outParameters.get("number_aggregated");
   } else {
     return 0;
   }
 }

}


class Employee {

 private Integer id;
 private Name name = new Name();
 private Integer age;
 private Sex sex;
 private Address address = new Address();
 private List<PhoneNumber> phoneNumbers = new ArrayList<PhoneNumber>();
 public Employee() {
 }
 public Employee(String firstName, String lastName) {
   this.getName().setFirst(firstName);
   this.getName().setLast(lastName);
 }
 void setId(Integer id) {
   this.id = id;
 }
 public Integer getId() {
   return id;
 }
 public Address getAddress() {
   return address;
 }
 public Integer getAge() {
   return age;
 }
 public void setAge(Integer age) {
   this.age = age;
 }
 public Name getName() {
   return name;
 }
 public List<PhoneNumber> getPhoneNumbers() {
   return Collections.unmodifiableList(phoneNumbers);
 }
 public void addPhoneNumber(PhoneNumber phoneNumber) {
   this.phoneNumbers.add(phoneNumber);
 }
 public void removePhoneNumber(PhoneNumber phoneNumber) {
   this.phoneNumbers.remove(phoneNumber);
 }
 public void removePhoneNumber(int index) {
   this.phoneNumbers.remove(index);
 }
 public Sex getSex() {
   return sex;
 }
 public void setSex(Sex sex) {
   this.sex = sex;
 }

} abstract class Sex {

 public static final Sex MALE = new Male();
 public static final Sex FEMALE = new Female();
 public boolean equals(Object o) {
   if (o == null) {
     return false;
   }
   return getClass().equals(o.getClass());
 }

} class PhoneNumber { } class Address {

 private String line1;
 private String line2;
 private String city;
 private String state;
 private String zip;
 public void setLine1(String line1) {
   this.line1 = line1;
 }
 public String getLine1() {
   return this.line1;
 }
 public void setLine2(String line2) {
   this.line2 = line2;
 }
 public String getLine2() {
   return this.line2;
 }
 public void setCity(String city) {
   this.city = city;
 }
 public String getCity() {
   return this.city;
 }
 public void setState(String state) {
   this.state = state;
 }
 public String getState() {
   return this.state;
 }
 public void setZip(String zip) {
   this.zip = zip;
 }
 public String getZip() {
   return this.zip;
 }

} final class Male extends Sex {

 protected Male() {
 }

} final class Female extends Sex {

 protected Female() {
 }

} class Name {

 private String first;
 private String middle;
 private String last;
 public void setFirst(String first) {
   this.first = first;
 }
 public String getFirst() {
   return this.first;
 }
 public void setMiddle(String middle) {
   this.middle = middle;
 }
 public String getMiddle() {
   return this.middle;
 }
 public void setLast(String last) {
   this.last = last;
 }
 public String getLast() {
   return this.last;
 }

}</source>





UpdateStatement With Two Parameters

File: context.xml



   <source lang="java">

<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans"

      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xmlns:util="http://www.springframework.org/schema/util"
      xmlns:tx="http://www.springframework.org/schema/tx"
      xmlns:aop="http://www.springframework.org/schema/aop"
      xmlns:lang="http://www.springframework.org/schema/lang"
      xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
                          http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-2.0.xsd
                          http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd
                          http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
                          http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang-2.0.xsd">
   <bean id="dataSource" class="org.apache.rumons.dbcp.BasicDataSource" destroy-method="close">
   <property name="driverClassName" value="org.hsqldb.jdbcDriver"/>
   <property name="url" value="jdbc:hsqldb:mem:."/>
   <property name="username" value="sa"/>
   <property name="password" value=""/>
   </bean>
   <bean id="lobHandler" class="org.springframework.jdbc.support.lob.OracleLobHandler">
       <property name="nativeJdbcExtractor" ref="nativeJdbcExtractor"/>
   </bean>
   <bean id="nativeJdbcExtractor" class="org.springframework.jdbc.support.nativejdbc.rumonsDbcpNativeJdbcExtractor"/>
   <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
       <property name="dataSource" ref="dataSource"/>
   </bean>

</beans></source>





Use JdbcTemplate To Execute Delete Statement With Parameter

File: EmployeeDaoImpl.java



   <source lang="java">

import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Types; import java.util.ArrayList; import java.util.Collections; import java.util.HashMap; import java.util.List; import java.util.Map; import javax.sql.DataSource; import org.springframework.dao.DataAccessException; import org.springframework.jdbc.core.BatchPreparedStatementSetter; import org.springframework.jdbc.core.RowMapper; import org.springframework.jdbc.core.SqlOutParameter; import org.springframework.jdbc.core.SqlParameter; import org.springframework.jdbc.core.simple.ParameterizedRowMapper; import org.springframework.jdbc.core.simple.SimpleJdbcTemplate; import org.springframework.jdbc.core.support.AbstractLobCreatingPreparedStatementCallback; import org.springframework.jdbc.core.support.AbstractLobStreamingResultSetExtractor; import org.springframework.jdbc.core.support.JdbcDaoSupport; import org.springframework.jdbc.object.MappingSqlQuery; import org.springframework.jdbc.object.SqlUpdate; import org.springframework.jdbc.object.StoredProcedure; import org.springframework.jdbc.support.lob.DefaultLobHandler; import org.springframework.jdbc.support.lob.LobCreator; import org.springframework.jdbc.support.lob.LobHandler; import org.springframework.jdbc.support.nativejdbc.SimpleNativeJdbcExtractor; import org.springframework.util.FileCopyUtils; //import org.apache.rumons.dbcp.BasicDataSource;

public class EmployeeDaoImpl extends JdbcDaoSupport{

 protected void initDao() throws Exception {
   super.initDao();
   getJdbcTemplate().setNativeJdbcExtractor(new SimpleNativeJdbcExtractor());
 }
 public void delete(Employee employee) {
   getJdbcTemplate().update("DELETE FROM employee WHERE id = ?", new Object[] { employee.getId() });
 }

}

class Employee {

 private Integer id;
 private Name name = new Name();
 private Integer age;
 private Sex sex;
 private Address address = new Address();
 private List<PhoneNumber> phoneNumbers = new ArrayList<PhoneNumber>();
 public Employee() {
 }
 public Employee(String firstName, String lastName) {
   this.getName().setFirst(firstName);
   this.getName().setLast(lastName);
 }
 void setId(Integer id) {
   this.id = id;
 }
 public Integer getId() {
   return id;
 }
 public Address getAddress() {
   return address;
 }
 public Integer getAge() {
   return age;
 }
 public void setAge(Integer age) {
   this.age = age;
 }
 public Name getName() {
   return name;
 }
 public List<PhoneNumber> getPhoneNumbers() {
   return Collections.unmodifiableList(phoneNumbers);
 }
 public void addPhoneNumber(PhoneNumber phoneNumber) {
   this.phoneNumbers.add(phoneNumber);
 }
 public void removePhoneNumber(PhoneNumber phoneNumber) {
   this.phoneNumbers.remove(phoneNumber);
 }
 public void removePhoneNumber(int index) {
   this.phoneNumbers.remove(index);
 }
 public Sex getSex() {
   return sex;
 }
 public void setSex(Sex sex) {
   this.sex = sex;
 }

} abstract class Sex {

 public static final Sex MALE = new Male();
 public static final Sex FEMALE = new Female();
 public boolean equals(Object o) {
   if (o == null) {
     return false;
   }
   return getClass().equals(o.getClass());
 }

} class PhoneNumber { } class Address {

 private String line1;
 private String line2;
 private String city;
 private String state;
 private String zip;
 public void setLine1(String line1) {
   this.line1 = line1;
 }
 public String getLine1() {
   return this.line1;
 }
 public void setLine2(String line2) {
   this.line2 = line2;
 }
 public String getLine2() {
   return this.line2;
 }
 public void setCity(String city) {
   this.city = city;
 }
 public String getCity() {
   return this.city;
 }
 public void setState(String state) {
   this.state = state;
 }
 public String getState() {
   return this.state;
 }
 public void setZip(String zip) {
   this.zip = zip;
 }
 public String getZip() {
   return this.zip;
 }

} final class Male extends Sex {

 protected Male() {
 }

} final class Female extends Sex {

 protected Female() {
 }

}

class Name {

 private String first;
 private String middle;
 private String last;
 public void setFirst(String first) {
   this.first = first;
 }
 public String getFirst() {
   return this.first;
 }
 public void setMiddle(String middle) {
   this.middle = middle;
 }
 public String getMiddle() {
   return this.middle;
 }
 public void setLast(String last) {
   this.last = last;
 }
 public String getLast() {
   return this.last;
 }

}</source>





Use JdbcTemplate To Pass In Different Type Of Parameters

File: context.xml



   <source lang="java">

<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN"

   "http://www.springframework.org/dtd/spring-beans.dtd">

<beans> <bean id="dataSource" class="org.apache.rumons.dbcp.BasicDataSource"

     destroy-method="close">
 <property name="driverClassName" value="org.hsqldb.jdbcDriver"/>
 <property name="url" value="jdbc:hsqldb:mem:."/>
 <property name="username" value="sa"/>
 <property name="password" value=""/>

</bean> <bean id="employeeDao" class="EmployeeDaoImpl">

 <property name="dataSource" ref="dataSource"/>

</bean> </beans></source>